Revision as of 00:44, 9 December 2021 edit SevenSpheres (talk \| contribs) Extended confirmed users 6,346 edits Kepler-32 e & f are considered confirmed by both the Extrasolar Planets Encyclopedia and NASA Exoplanet Archive ← Previous edit		Revision as of 16:58, 25 April 2022 edit undo 93.5.83.18 (talk) →‎Planetary system Next edit →
Line 42: ==Planetary system== In 2011, 2 planets orbiting around it, were discovered, and two more suspected.<ref name=Fabrycky2011>{{citation\|arxiv=1102.0543\|year=2011\|doi=10.1088/0067-0049/197/1/8\|last1=Lissauer\|first1=Jack J.\|last2=Ragozzine\|first2=Darin\|last3=Fabrycky\|first3=Daniel C.\|last4=Steffen\|first4=Jason H.\|last5=Ford\|first5=Eric B.\|last6=Jenkins\|first6=Jon M.\|last7=Shporer\|first7=Avi\|last8=Holman\|first8=Matthew J.\|last9=Rowe\|first9=Jason F.\|last10=Quintana\|first10=Elisa V.\|last11=Batalha\|first11=Natalie M.\|last12=Borucki\|first12=William J.\|last13=Bryson\|first13=Stephen T.\|last14=Caldwell\|first14=Douglas A.\|last15=Carter\|first15=Joshua A.\|last16=Ciardi\|first16=David\|last17=Dunham\|first17=Edward W.\|last18=Fortney\|first18=Jonathan J.\|last19=Gautier, Iii\|first19=Thomas N.\|last20=Howell\|first20=Steve B.\|last21=Koch\|first21=David G.\|last22=Latham\|first22=David W.\|last23=Marcy\|first23=Geoffrey W.\|last24=Morehead\|first24=Robert C.\|last25=Sasselov\|first25=Dimitar\|title=Architecture and Dynamics of Kepler 'S Candidate Multiple Transiting Planet Systems\|journal=The Astrophysical Journal Supplement Series\|volume=197\|issue=1\|page=8\|bibcode=2011ApJS..197....8L\|s2cid=43095783}}</ref> The smaller [[Kepler-32b]], orbiting its parent star every 5.90124 days, and [[Kepler-32c]] with an orbital period of 8.7522 days.<ref>{{cite web\|author=The Extrasolar Planet Encyclopedia\|title=Kepler-32\|url=http://voparis-exoplanet-new.obspm.fr/catalog/?f=%27Kepler-32%27+in+name\|publisher=Exoplanet.eu\|access-date=28 February 2013\|url-status=dead\|archive-url=https://web.archive.org/web/20140203005829/http://voparis-exoplanet-new.obspm.fr/catalog/?f=%27Kepler-32%27+in+name\|archive-date=3 February 2014}}</ref> In April 2013, transit-timing variation analysis confirmed 3 other planets to be in the system. However, only very loose constraints of the maximum mass of the planets could be determined.<ref>{{Cite journal\|arxiv=1201.5415\|last1= Fabrycky\|first1= Daniel C. \|display-authors=etal.\|title= Transit Timing Observations from Kepler: IV. Confirmation of 4 Multiple Planet Systems by Simple Physical Models\|journal= The Astrophysical Journal\|volume= 750\|issue= 2\|pages= 114\|year= 2012\|doi= 10.1088/0004-637X/750/2/114\|bibcode= 2012ApJ...750..114F\|s2cid= 9075167}}</ref> In 2014, the dynamical simulation shown what the Kepler-32 planetary system have likely to undergone a substantial inward migration in the past, producing an observed pattern of lower-mass planets on tightest orbits.<ref>[https://academic.oup.com/mnras/article/445/1/749/1747459 T. O. Hands, R. D. Alexander, W. Dehnen, "Understanding the assembly of Kepler's compact planetary systems", 2014]</ref> Additional yet unobserved gas giant planets on wider orbit are likely necessary for migration of smaller planets to proceed that far inward,<ref>{{citation\|arxiv=1512.02649\|title=There might be giants: unseen Jupiter-mass planets as sculptors of tightly-packed planetary systems\|year=2015\|doi=10.1093/mnras/stv2897\|last1=Hands\|first1=T. O.\|last2=Alexander\|first2=R. D.\|journal=Monthly Notices of the Royal Astronomical Society\|volume=456\|issue=4\|pages=4121–4127\|s2cid=55175754}}</ref> although current planetary system would be unstable if additional planets are located closer than 8.7 [[astronomical unit\|AU]] from the parent star.<ref>{{citation\|arxiv=1702.07714\|title=Effects of Unseen Additional Planetary Perturbers on Compact Extrasolar Planetary Systems\|year=2017\|doi=10.1093/mnras/stx461\|last1=Becker\|first1=Juliette C.\|last2=Adams\|first2=Fred C.\|journal=Monthly Notices of the Royal Astronomical Society\|volume=468\|issue=1\|pages=549–563\|bibcode=2017MNRAS.468..549B\|s2cid=119325005}}</ref> {{OrbitboxPlanet begin

Kepler-32: Difference between revisions